Magnetic sharpening jig comprising a flexible contact element

Abstract

A magnetic sharpening jig, in particular for holding, by magnetic force, a cutting tool which is to be sharpened or polished and which includes a magnetizable blade, and for positioning said cutting tool relative to a sharpening and/or polishing tool, e.g. a rolling sharpener. In order to provide a versatile magnetic sharpening jig, the magnetic sharpening jig includes at least one flexible contact element with which the magnetically attracted blade of the cutting tool comes into contact during normal operation. Also disclosed are a set including a magnetic sharpening jig and a rolling sharpener, as well as a method for sharpening or polishing the cutting tool using the magnetic sharpening jig.

1 - 15 . (canceled) 
     
     
         16 . A magnetic sharpening jig for holding a cutting tool to be sharpened or polished, comprising:
 a flexible contact element configured to contact a magnetizable blade of the cutting tool,   wherein the magnetic sharpening jig is configured to hold the magnetizable blade of the cutting tool in contact with the flexible contact element by magnetic force, to thereby position the cutting tool relative to a rolling sharpening or polishing tool.   
     
     
         17 . The magnetic sharpening jig according to  claim 16 , wherein the contact element is made of a plastic, an elastomer, a vulcanizate of natural rubber, or a silicone rubber. 
     
     
         18 . The magnetic sharpening jig according to  claim 16 , further comprising a body on which the contact element is arranged. 
     
     
         19 . The magnetic sharpening jig according to  claim 18 , wherein the body of the magnetic sharpening jig is made entirely of wood. 
     
     
         20 . The magnetic sharpening jig according to  claim 18 , further comprising a magnet, wherein the contact element has a higher flexibility than the body or the magnet. 
     
     
         21 . The magnetic sharpening jig according to  claim 18 , wherein the body comprises a contact side on which the contact element is arranged, and wherein the contact element covers at least a portion of the contact side. 
     
     
         22 . The magnetic sharpening jig according to  claim 16 , further comprising a plurality of magnets configured to generate the magnetic force, wherein the contact element covers the plurality of magnets. 
     
     
         23 . The magnetic sharpening jig according to  claim 16 , further comprising a body and a magnet, wherein the contact element is configured such that a contact between the cutting tool and the body or the magnet is partially or completely prevented. 
     
     
         24 . The magnetic sharpening jig according to  claim 16 , wherein the contact element comprises a planar contact surface configured to contact the blade of the cutting tool. 
     
     
         25 . The magnetic sharpening jig according to  claim 16 , wherein the contact element comprises a marking which indicates the amount of a sharpening angle, and wherein the marking is arranged centrally in a contact surface of the contact element. 
     
     
         26 . The magnetic sharpening jig according to  claim 16 , further comprising:
 a plurality of contact elements; and   a body having contact sides facing away from each other,   wherein the contact elements are arranged on the contact sides.   
     
     
         27 . The magnetic sharpening jig according to  claim 26 , further comprising an installation plane, wherein the contact elements and the installation plane enclose different acute angles in the range between 70° and 75°. 
     
     
         28 . The magnetic sharpening jig according to  claim 16 , wherein a sharpening angle measured between a surface of the contact element and a plane perpendicular to a base is in the range between 15° and 20°. 
     
     
         29 . The magnetic sharpening jig according to  claim 16 , wherein the contact element has a thickness in the range from 0.1 to 2 mm. 
     
     
         30 . The magnetic sharpening jig according to  claim 24 , wherein the contact element has a planar attachment surface configured to be attached to a body of the magnetic sharpening jig, and wherein the attachment surface is aligned parallel to the contact surface. 
     
     
         31 . The magnetic sharpening jig according to  claim 16 , wherein the contact element is firmly bonded to a body or a magnet of the magnetic sharpening jig. 
     
     
         32 . The magnetic sharpening jig according to  claim 16 , wherein the contact element has a cuboid body. 
     
     
         33 . The magnetic sharpening jig according to  claim 16 , wherein the contact element has a rectangular outline. 
     
     
         34 . The magnetic sharpening jig according to  claim 16 , further comprising a body having a magnet receiving opening, wherein the contact element covers the magnet receiving opening. 
     
     
         35 . The magnetic sharpening jig according to  claim 16 , wherein the contact element has a higher static friction coefficient than a body or a magnet of the magnetic sharpening jig. 
     
     
         36 . The magnetic sharpening jig according to  claim 18 , wherein the body has a length in the range of 80 to 120 mm. 
     
     
         37 . The magnetic sharpening jig according to  claim 18 , wherein the body has a height in the range of 15 to 30 mm. 
     
     
         38 . The magnetic sharpening jig according to  claim 18 , wherein the body has a width in the range of 50 to 60 mm. 
     
     
         39 . The magnetic sharpening jig according to  claim 18 , wherein the body has a trapezoidal cross-section in a first cross-sectional plane perpendicularly intersecting the contact element, and wherein the cross-section tapers towards a lower side. 
     
     
         40 . The magnetic sharpening jig according to  claim 39 , wherein the body has a rectangular cross-section in a second cross-sectional plane not intersecting the contact element, and wherein the second cross-sectional plane is aligned perpendicular to the first cross-sectional plane. 
     
     
         41 . The magnetic sharpening jig according to  claim 18 , wherein the body has a rectangular outline in a top view or a bottom view. 
     
     
         42 . The magnetic sharpening jig according to  claim 18 , wherein the body has an opening in a contact side configured to receive a magnet, and wherein the opening is cylindrical. 
     
     
         43 . The magnetic sharpening jig according to  claim 18 , wherein the body has a upper side larger than a lower side. 
     
     
         44 . The magnetic sharpening jig according to  claim 18 , wherein the body tapers continuously from an upper side to a lower side. 
     
     
         45 . The magnetic sharpening jig according to  claim 18 , wherein the body comprises exclusively flat sides. 
     
     
         46 . The magnetic sharpening jig according to  claim 22 , wherein each of the magnets is a permanent magnet. 
     
     
         47 . The magnetic sharpening jig according to  claim 22 , wherein each of the magnets comprises a cylindrical outer contour. 
     
     
         48 . The magnetic sharpening jig according to  claim 22 , wherein each of the magnets is inserted and fits precisely in a receptacle in a body of the magnetic sharpening jig. 
     
     
         49 . The magnetic sharpening jig according to  claim 22 , wherein each of the magnets comprises a planar end face. 
     
     
         50 . The magnetic sharpening jig according to  claim 49 , wherein the end face of each of the magnets is flush with a contact side of a body of the magnetic sharpening jig. 
     
     
         51 . The magnetic sharpening jig according to  claim 49 , wherein the end face of each of the magnets is fully covered by the contact element. 
     
     
         52 . The magnetic sharpening jig according to  claim 22 , wherein the magnets on a contact side of a body of the magnetic sharpening jig are identical magnets. 
     
     
         53 . The magnetic sharpening jig according to  claim 47 , further comprising a body having a contact side and two cylindrical bores on the contact side, wherein the magnets are inserted and fit precisely in the bores, such that end faces of the magnets are flush with the contact side. 
     
     
         54 . The magnetic sharpening jig according to  claim 22 , wherein each of the magnets has a holding force in the range of 0.1 to 10 kg. 
     
     
         55 . The magnetic sharpening jig according to  claim 16 , further comprising an installation section having a head and a shaft projecting from the head. 
     
     
         56 . The magnetic sharpening jig according to  claim 16 , further comprising an installation section that is a plastic plug. 
     
     
         57 . The magnet sharpening jig according to  claim 16 , further comprising an installation section made of plastic, an elastomer, a vulcanizate of natural rubber, or a silicone rubber. 
     
     
         58 . A method for sharpening or polishing a cutting tool using the magnetic sharpening jig according to  claim 16 , comprising:
 arranging the magnetic sharpening jig on a base;   providing the cutting tool having the magnetizable blade and the cutting edge arranged thereon;   arranging the blade in a magnetic field of the magnetic sharpening jig so that the blade is magnetically attracted and comes into contact with the contact element of the magnetic sharpening jig; and   sharpening or polishing the cutting edge of the cutting tool with a rolling sharpening or polishing tool.   
     
     
         59 . The method according to  claim 58 , wherein the blade is arranged such that the blade is spaced apart from the base or the cutting edge is facing away from the base. 
     
     
         60 . A magnetic sharpening jig for holding a cutting tool to be sharpened or polished, comprising:
 an elastic contact element configured to contact a magnetizable blade of the cutting tool; and   a plurality of magnets configured to generate magnetic force,   wherein the contact element covers the plurality of magnets, and   wherein the magnetic sharpening jig is configured to hold the magnetizable blade of the cutting tool in contact with the contact element by the magnetic force, to thereby position the cutting tool relative to a rolling sharpening or polishing tool.   
     
     
         61 . A magnetic sharpening jig for holding a cutting tool to be sharpened or polished, comprising:
 a flexible contact element configured to contact a magnetizable blade of the cutting tool,   a body on which the contact element is arranged; and   a plurality of magnets configured to generate magnetic force,   wherein each of the magnets is inserted and fits precisely in a receptacle in the body,   wherein the contact element covers at least one magnet-receiving opening in the body, and   wherein the magnetic sharpening jig is configured to hold the magnetizable blade of the cutting tool in contact with the contact element by the magnetic force, to thereby position the cutting tool relative to a rolling sharpening or polishing tool.   
     
     
         62 . A magnetic sharpening jig for holding a cutting tool to be sharpened or polished, comprising:
 an elastic contact element configured to contact a magnetizable blade of the cutting tool; and   a body on which the contact element is arranged,   wherein body has a trapezoidal cross-section in a first cross-sectional plane perpendicularly intersecting the contact element,   wherein the trapezoidal cross-section tapers continuously from the upper side to the lower side, and   wherein the magnetic sharpening jig is configured to hold the magnetizable blade of the cutting tool in contact with the contact element by magnetic force, to thereby position the cutting tool relative to a rolling sharpening or polishing tool.   
     
     
         63 . A magnetic sharpening jig for holding a cutting tool to be sharpened or polished, comprising:
 an elastic contact element configured to contact a magnetizable blade of the cutting tool,   wherein the contact element comprises a marking that indicates the amount of a sharpening angle,   wherein the marking is in the form of an imprint, and   wherein the magnetic sharpening jig is configured to hold the magnetizable blade of the cutting tool in contact with the contact element by magnetic force, to thereby position the cutting tool relative to a rolling sharpening or polishing tool.   
     
     
         64 . A magnetic sharpening jig for holding a cutting tool to be sharpened or polished, comprising:
 an elastic contact element configured to contact a magnetizable blade of the cutting tool; and   a body on which the contact element is arranged,   wherein the body is formed at least partly of wood, and   wherein the magnetic sharpening jig is configured to hold the magnetizable blade of the cutting tool in contact with the contact element by magnetic force, to thereby position the cutting tool relative to a rolling sharpening or polishing tool.